import router from './router'
import store from './store'
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
import { getToken } from '@/utils/auth' // get token from cookie
import getPageTitle from '@/utils/get-page-title'

NProgress.configure({ showSpinner: false }) // NProgress Configuration

// 白名单
const whiteList = ['/login', '/register'] // no redirect whitelist

router.beforeEach(async(to, from, next) => {
  // start progress bar
  NProgress.start()

  // set page title
  document.title = getPageTitle(to.meta.title)

  // determine whether the user has logged in
  const hasToken = getToken()

  if (hasToken) {
    if (to.path === '/login') {
      // if is logged in, redirect to the home page
      next({ path: '/' })
      NProgress.done()
    } else {
      // 判断当前用户是否已拉取完user_info信息
      const hasUserInfo = store.getters.name
      if (hasUserInfo === '' || hasUserInfo === null || hasUserInfo === undefined) {
        //调用接口获取用户信息
        store.dispatch('user/getInfo')
        // 如果有用户信息，通过用户ID查询当前用户所拥有的菜单和按钮权限
        const hasInit = store.getters.init
        if (hasInit === false) {
          // 触发actions查询用户权限
          store.dispatch('user/getUserMenu').then(() => {
            // 继续访问路由不会留下历史记录
            next()
          })
        } else {
          next()
        }
      } else {
        // 继续访问路由不会留下历史记录
        next()
      }
    }
  } else {
    // 没有token
    if (whiteList.indexOf(to.path) !== -1) {
      // in the free login whitelist, go directly
      next()
    } else {
      // other pages that do not have permission to access are redirected to the login page.
      next(`/login?redirect=${to.path}`)
      NProgress.done()
    }
  }
})

router.afterEach(() => {
  // finish progress bar
  NProgress.done()
})
